599,043+ Lead Software Engineer Pythonreact Jobs in Canada — Top Companies Hiring June 2026

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Associate Software Engineer (Web, SDK Platform)

The Role We are looking for a talented Associate Software Engineer to join our team and help build the future of document technology. In this role, you won't just be building UI components; you’ll be working on a sophisticated document SDK used by millions of people daily. This is a career-defining opportunity ...

Software Engineer Python Cloud graduate level

Canonical Canonical is a leading provider of open source software and operating systems to the global enterprise and technology markets. Our platform, Ubuntu, is widely used in breakthrough enterprise initiatives such as public cloud, data science, AI, engineering innovation, and IoT. Our customers include the w ...

Senior Software Engineer Payments API & Cloud

A leading payment solutions provider in Canada is looking for a Senior Software Engineer to join their team. In this role, you will develop scalable APIs, mentor junior developers, and collaborate cross-functionally with various teams. The ideal candidate should have over 6 years of experience in software develo ...

Senior Software Engineer, Payroll Platform (Serverless)

A leading global workforce solutions company in Toronto is seeking a Senior Software Engineer to develop and scale reliable payroll solutions. This role involves collaborating with product and design teams to deliver impactful features. Candidates should have over 5 years of experience with a strong focus on bac ...

Sr. Software Engineer in Test (Python)

Department:Research & DevelopmentLocation:Canada-CHQ-Ontario-TorontoCompensation:$123,300 - $169,500 / yearDescription This full‑time, on‑site position is ideal for experienced Senior Software Development professionals with experience in automated testi ...

Software Engineer Python Cloud graduate level

Canonical Canonical is a leading provider of open source software and operating systems to the global enterprise and technology markets. Our platform, Ubuntu, is widely used in breakthrough enterprise initiatives such as public cloud, data science, AI, engineering innovation, and IoT. Our customers include the w ...

Senior Software Engineer Global Scale Systems

A global staffing and consulting firm is seeking a Software Engineer V to design architectures that support systems for billions. You will focus on high-traffic services, mentoring engineers, and influencing product strategies. Ideal candidates have expertise in modern programming languages such as Python and Ja ...

Satellite FDIR & Flight Software Systems Engineer

A leading aerospace engineering firm in Canada is looking for an FDIR-FSW Engineer to work with system and software engineers. The role involves documenting fault detection actions, reviewing designs, and ensuring compliance with FDIR requirements. Candidates should possess a Bachelor’s degree in electrical engi ...

Software Engineer, Transparency Platform Scale & Security

A leading technology company is seeking a Software Development Engineer to address challenges in the retail industry by building scalable solutions. The role involves defining technical direction, mentoring team members, and owning the end-to-end service lifecycle. Candidates should have experience with modern p ...

Senior Software Engineer, Distributed Database Infra

A leading procurement technology firm in Toronto seeks an experienced Software Engineer to enhance its proprietary database access layer. You will work on improving scalability and performance for Zip's products, collaborating closely with product engineering teams. Ideal candidates have over 5 years of software ...

Quantitative Software Engineer: ML, Math & LargeScale

A renowned consulting firm in Toronto is looking for a Quantitative Software Engineer to tackle complex computational challenges. Responsibilities include developing systems for machine learning and quantitative algorithms, while collaborating with research partners. Ideal candidates have a BS in Computer Scienc ...

Staff Software Engineer: Internal Platform Architect

A leading data streaming technology company is looking for a Staff Software Engineer to lead the architecture and implementation of internal web applications. You will be responsible for designing complex systems, mentoring other engineers, and collaborating with cross-functional teams. The ideal candidate shoul ...

Senior Software Engineer, Fullstack (Consumer Engineering)

Affirm is reinventing credit to make it more honest and friendly, giving consumers the flexibility to buy now and pay later without any hidden fees or compounding interest.Consumer Growth Experience Engineering (CGX) builds the platforms and end‑to‑end experiences that power affirm’s consumer growth ac ...

Senior Software Engineer, Fullstack (Consumer Engineering)

Affirm is reinventing credit to make it more honest and friendly, giving consumers the flexibility to buy now and pay later without any hidden fees or compounding interest.Consumer Growth Experience Engineering (CGX) builds the platforms and end‑to‑end experiences that power affirm’s consumer growth ac ...

Software Engineer I Production Systems & Support

Une banque de premier plan à Toronto recherche un professionnel en technologie de l'information pour un rôle de Customer. Le candidat idéal doit posséder des compétences en gestion des incidents et en communication efficace. Les responsabilités incluent la résolution d'incidents, la collaboration avec les partie ...

Staff Software Engineer, Platform Streaming (Auth0)

Get to know Okta Okta is The World’s Identity Company. We free everyone to safely use any technology, anywhere, on any device or app. Our flexible and neutral products, Okta Platform and Auth0 Platform, provide secure access, authentication, and automation, placing identity at the core of business security and g ...

Secret Cleared Software Engineer, C4ISR Systems

A technology consulting firm is seeking an Intermediate Software Engineer to support a large-scale defense project in Ottawa. The role involves providing system design and engineering support for the Canadian Army’s C4ISR systems. Candidates should have over 5 years of relevant software engineering experience, p ...

FinTech Software Engineer – Carbon Markets Platform

A leading carbon markets firm based in Toronto is seeking a Software Engineer to develop features for their financial intelligence platform. This role involves working with complex financial datasets and requires strong technical skills in Python and TypeScript. The ideal candidate will have over 5 years of expe ...

Senior Software Engineer Enterprise Automation Team

Senior Software Engineer - Enterprise Automation Teamlululemon is an innovative performance apparel company for yoga, running, training, and other athletic pursuits. Setting the bar in technical fabrics and functional design, we create transformational products and experiences that support people in mo ...

Senior Geophysical Software Engineer (Seismic Processing)

Location 700 9th Ave SW Suite 2000, Calgary, Alberta, T2P 3V4, CanadaWe are looking for the right people — people who want to innovate, achieve, grow and lead. We attract and retain the best talent by investing in our employees and empowering them to develop themselves and their careers. Experience the ...

Senior Software Engineer AI Platform & Experiences

CaptivateIQ is transforming the way companies plan, manage, and optimize sales performance. We started by revolutionizing incentive compensation management, and now we're expanding our platform to solve broader enterprise performance management challenges. Recognized by industry analysts like Forrester and G2 an ...

Capital Markets Software Engineer — Growth & Impact

A leading banking institution in Toronto seeks an Associate Software Engineer to develop and implement market-leading solutions in capital markets. The role involves close collaboration with business teams, coding, and enhancing applications. The ideal candidate has a degree in computer science or engineering an ...

Hybrid Senior Software Engineer — Remote/Onsite

A leading technology firm in Toronto is seeking an experienced Software Developer - Senior to drive software development initiatives. The role involves translating specifications into working applications, coding, testing, and providing post-implementation support. Candidates should have over 10 years of experie ...

Software Engineer Python Cloud graduate level

Canonical Canonical is a leading provider of open source software and operating systems to the global enterprise and technology markets. Our platform, Ubuntu, is widely used in breakthrough enterprise initiatives such as public cloud, data science, AI, engineering innovation, and IoT. Our customers include the w ...

Senior Software Engineer(.NET, Node.js, Vue.js)

Senior Software Engineer(.NET, Node.js, Vue.js) Job Description/ ResponsibilitiesDesign, develop, and maintain web applications using .NET technologies (e.g., ASP.NET, C#).Collaborate with cross‑functional teams to define, design, and ship new features.Write clean, scalable, and eff ...

Sr. Manager/ Director AI Software Engineer

About Us Appnovation is a global, full-service digital partner that combines Strategy, Experience & Design, Engineering and Managed Services. We build digital solutions that deliver real impact today and serve as foundations for future growth. Bold ambition. Practical action. Endless possibilities.Abou ...

Senior Software Engineer, Backend (Merchant Advocacy)

Affirm is reinventing credit to make it more honest and friendly, giving consumers the flexibility to buy now and pay later without any hidden fees or compounding interest. The Merchant & Partner Lifecycle (M&PL) team is at the forefront of Affirm’s architectural transformation. We are addressing critical archit ...

Transify Software Engineer Product and Data

Leading the development of new features - from prototyping to UX to the backend logic, writing unit and integration tests, and writing documentation. Remote, Canada Transify is a Toronto-based startup that's working on a data platform for transit agencies. Our data platform visualizes the data generated by GPS a ...

Software Engineer Intern: AI & Trading Systems

A pioneering technology company in Ottawa is looking for a motivated Software Engineer Intern to contribute to the development of advanced AI solutions and assist with algorithmic trading systems. This role offers hands-on experience in a fast-paced environment and an opportunity to work with experienced profess ...

Staff Software Engineer — Internal Platform & Architecture

A leading data streaming technology company in Canada seeks a Staff Software Engineer to design and implement internal web applications. The ideal candidate will have over 12 years of experience, strong full stack development skills, and a technical architecture background. You will collaborate with cross-functi ...

Software Engineer I Java/Spring & Angular

Une grande institution financière recherche un Ingénieur en logiciels I à Toronto. Le candidat idéal a entre 3 et 5 ans d'expérience en ingénierie logicielle, avec une maîtrise de Java et du framework Spring, ainsi qu'une expérience en développement d'applications frontend avec Angular. Ce poste inclut des respo ...

Software Engineer II, Backend (AI Agents)

Affirm is reinventing credit to make it more honest and friendly, giving consumers the flexibility to buy now and pay later without any hidden fees or compounding interest.We're looking for a Software Engineer II to join the AI Agents engineering team within the Servicing Engineering organization. Our ...

Software Engineer (Intermediate and Senior Levels)

About Felix Founded in 2019, Felix is a digital healthcare company that puts the patient in control of their own health and well-being. We’re passionate about building technology and beautiful customer experiences to make healthcare more accessible (and more enjoyable) for all Canadians.Felix is Canada ...

Senior Java Software Engineer with AWS

Iris's Fortune 100 direct client is lookingJava Developer with AWS . Please find below Job description and share me your updated resume at Job Title: Java Developer with AWS Location: Toronto, ON (Hybrid, 3 days onsite in a week) Must Have experience in Java, Spring boot, Nodejs, AWS lambda ...

Senior Principal Software Engineer, Feature Store

Overview Who We AreWe're Redis. We built the product that runs the fast apps our world runs on. If you checked the weather, used your credit card, or looked at your flight status online today, you’re welcome. At Redis, you’ll work with the fastest, simplest technology in the business—whether you’re bui ...

Senior Software Engineer, Fullstack (Consumer Engineering)

Affirm is reinventing credit to make it more honest and friendly, giving consumers the flexibility to buy now and pay later without any hidden fees or compounding interest.Consumer Growth Experience Engineering (CGX) builds the platforms and end‑to‑end experiences that power affirm’s consumer growth ac ...

Senior Software Engineer (Python + Distributed systems)

Scribd, Inc. is on a mission to advance human understanding. Our four products — Scribd®, Slideshare®, Everand™, and Fable — help billions of people across the globe move beyond access and into insight, application, and expertise.Culture at Scribd, Inc. We support a culture where our employees can be r ...

Senior Software Engineer Full Stack .NET

Who We AreBankjoy is a Y Combinator and Bessemer Venture Partner backed FinTech startup. We are changing the way community banks and credit unions do business, enabling them to become tech‑driven and digital first. Bankjoy provides modern digital banking products including mobile banking, online bankin ...

Senior Software Engineer, Fullstack (Consumer Engineering)

Affirm is reinventing credit to make it more honest and friendly, giving consumers the flexibility to buy now and pay later without any hidden fees or compounding interest.Consumer Growth Experience Engineering (CGX) builds the platforms and end-to-end experiences that power Affirm’s consumer growth ac ...

Senior Software Engineer, Fullstack (Consumer Engineering)

Affirm is reinventing credit to make it more honest and friendly, giving consumers the flexibility to buy now and pay later without any hidden fees or compounding interest.Consumer Growth Experience Engineering (CGX) builds the platforms and end-to-end experiences that power Affirm’s consumer growth ac ...

Senior Software Engineer, Fullstack (Consumer Engineering)

Affirm is reinventing credit to make it more honest and friendly, giving consumers the flexibility to buy now and pay later without any hidden fees or compounding interest.Consumer Growth Experience Engineering (CGX) builds the platforms and end-to-end experiences that power Affirm’s consumer growth ac ...

Senior Software Engineer Enterprise Platform (Hybrid)

A leading technology company in Toronto is looking for a Senior Software Engineer to enhance its enterprise products. You'll design and deploy scalable features while mentoring fellow engineers. Ideal candidates will have over five years' experience with backend services and APIs, strong skills in Java or Kotlin ...

Software Engineer Intern — AI Powered Platform

A leading software company in Toronto is seeking a Software Engineer Intern. The successful candidate will work on building core products and features, collaborating closely with teams to design reliable applications. Key qualifications include pursuing a degree in Computer Science, experience with web technolog ...

Senior Architect & Software Engineer Java & Cloud

A leading AI-first digital engineering firm in Fredericton, NB is seeking an experienced Architect – Software Developer. The ideal candidate will lead the design of scalable web applications using Java, Spring Boot, and SQL. Responsibilities include developing RESTful APIs, optimizing data solutions, and collabo ...

Software Development Engineer, Alexa Screen Experience

Overview The Alexa Smart Properties Screen Experience team builds the visual interfaces that complement Alexa voice interactions across hospitality and senior living properties — serving thousands of properties and millions of daily screen interactions worldwide. We own enterprise device screen experiences and n ...

Senior Software Engineer, Enterprise Automation Leader

A leading performance apparel company in Vancouver is searching for a Senior Software Engineer to lead complex software systems design and implementation. The role involves driving technical decisions, mentoring engineers, and ensuring high-quality code across teams. Ideal candidates will have a Bachelor’s degre ...

Senior Software Engineer Data & FinOps Insights

A tech-driven company in Canada seeks a Senior Software Engineer to architect and develop innovative features. You will be responsible for creating cost management tools, developing UI components, and building data pipelines to enhance application performance. The ideal candidate has strong backend and data engi ...

Senior Java Software Engineer Microservices (Onsite)

A technology solutions provider in Toronto is seeking experienced Senior Software Developers for a 2-year onsite contract. This role requires 10+ years in Java / Java EE development and expertise in Oracle RDBMS. You will support existing applications, conduct testing and debugging, and work closely with QA team ...

Software Engineer Intern — AI Powered Platform

A leading procurement platform company in Toronto is searching for a Software Engineer Intern. In this role, you will design and build core products while gaining hands-on experience with modern technologies like Python, JavaScript, and React. You will collaborate with a tight-knit team to solve complex challeng ...

Senior Software Engineer, Fullstack (Platform Payments)

Senior Software Engineer, Fullstack (Platform – Payments) At Coinbase, our mission is to increase economic freedom in the world. We’re seeking a senior software engineer passionate about crypto and blockchain to build innovative payment solutions. Want to join a team focused on speed, efficiency, quality, and im ...

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